Blow Out was an Atari 2600 game developed by David Akers to be released by Mattel. The game was apparently going to be about 2 roller-skating dancers dropping darts off a scaffold. There was an interesting mechanic in that music played in the background, & when it stopped, it meant that it was the next players' turn to take the controllers. Apparently he only worked on the game for quick moments before it ended up being cancelled for higher quality projects(the 1983 video game crash might be another factor into its cancellation), & nobody knows how much development went into the game. As such, we don't have any ROMs out there of the game, & it might be stuck in their vaults.